public class Test {
    public static int a = 0;
    public static void main(String[] args) {
        Test01 test01 = new Test01();
        test01.so();
    }
    public static void main1(String[] args) {
        if(a++ != 2) main(args);
        System.out.println("   132");
    }
}
class Test01 extends Test{
        public void so(){
        Test test1 = new Test();
        Test01 test01 = new Test01();
        Test test2 = new Test01();

        Test01 test02 = (Test01) test2;


    }
}